# Gemini 5

> human spaceflight

**Wikidata**: [Q725849](https://www.wikidata.org/wiki/Q725849)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Gemini_5)  
**Source**: https://4ort.xyz/entity/gemini-5

Here’s the structured knowledge entry for **Gemini 5** based on the provided source material:

---

## Summary  
Gemini 5 was a 1965 crewed spaceflight in NASA's Project Gemini, designed to test long-duration human spaceflight capabilities. It was the third crewed mission in the Gemini program, launched aboard a Titan II GLV rocket, and completed 120 Earth orbits over nearly 8 days. The mission demonstrated the feasibility of extended space travel, paving the way for future Apollo missions.

## Key Facts  
- **Launch Date**: August 21, 1965  
- **Landing Date**: August 29, 1965  
- **Duration**: 7 days, 22 hours, 55 minutes (687,314 seconds)  
- **Crew**: Gordon Cooper (commander) and Pete Conrad (pilot)  
- **Launch Vehicle**: Titan II GLV  
- **Spacecraft**: Gemini spacecraft (mass: 3,605 kg at launch)  
- **Orbit**: Low Earth orbit (170 km periapsis, 330 km apoapsis, 32.5° inclination)  
- **Orbits Completed**: 120  
- **Recovery Ship**: USS Lake Champlain  
- **Preceded by**: Gemini 4 | **Followed by**: Gemini 7  

## FAQs  
### Q: What was the purpose of Gemini 5?  
A: Gemini 5 aimed to test long-duration spaceflight (nearly 8 days) and evaluate life support systems, orbital maneuvers, and crew endurance, critical for future Apollo missions.  

### Q: Who were the crew members of Gemini 5?  
A: The crew consisted of Gordon Cooper as spacecraft commander and Pete Conrad as pilot. Neil Armstrong and Elliot See served as backup crew.  

### Q: Where did Gemini 5 land?  
A: It splashed down in the Atlantic Ocean at coordinates 29.78°N, 69.76°W, recovered by the USS Lake Champlain.  

## Why It Matters  
Gemini 5 was a pivotal mission in NASA's Project Gemini, proving humans could survive and work in space for extended periods—a prerequisite for the Apollo Moon missions. It set a then-record for spaceflight duration (nearly 8 days), tested fuel cells for power, and validated orbital rendezvous techniques. The mission's success bolstered confidence in NASA's ability to execute longer missions, directly contributing to the Apollo program's eventual Moon landings.  

## Notable For  
- **Long-Duration Record**: First mission to approach the 8-day duration needed for a Moon mission.  
- **Fuel Cell Test**: Demonstrated the use of fuel cells for electrical power in space.  
- **Backup Crew**: Featured Neil Armstrong (later first Moonwalker) as backup commander.  
- **Orbital Precision**: Achieved stable low Earth orbit with minimal deviations.  

## Body  
### Mission Overview  
- Launched from **Cape Canaveral Launch Complex 19** on August 21, 1965.  
- Primary goal: Validate long-duration flight and spacecraft systems.  

### Technical Specifications  
- **Spacecraft Mass**: 3,605 kg (launch weight).  
- **Orbit**: 170 km × 330 km, 32.5° inclination, 89.5-minute orbital period.  
- **Power**: Fuel cells instead of batteries for extended missions.  

### Crew and Operations  
- **Crew Roles**: Cooper (commander), Conrad (pilot).  
- **Backup Crew**: Armstrong and See.  
- **Significant Events**:  
  - Launch: August 21, 1965.  
  - Splashdown: August 29, 1965, in the Atlantic Ocean.  

### Legacy  
- Proved endurance and reliability of Gemini systems.  
- Directly influenced Apollo mission planning.  

## Schema Markup  
```json
{
  "@context": "https://schema.org",
  "@type": "SpaceMission",
  "name": "Gemini 5",
  "description": "1965 crewed spaceflight in NASA's Project Gemini, testing long-duration human spaceflight capabilities.",
  "sameAs": [
    "https://www.wikidata.org/wiki/Q1503149",
    "https://en.wikipedia.org/wiki/Gemini_5"
  ],
  "startDate": "1965-08-21",
  "endDate": "1965-08-29",
  "crew": [
    {"name": "Gordon Cooper", "role": "spacecraft commander"},
    {"name": "Pete Conrad", "role": "spacecraft pilot"}
  ],
  "launchVehicle": "Titan II GLV",
  "landingSite": "Atlantic Ocean"
}

## References

1. Jonathan's Space Report
2. [Source](http://nssdc.gsfc.nasa.gov/nmc/spacecraftDisplay.do?id=1965-068A)
3. Freebase Data Dumps. 2013